The CallbackParam class.
This class represents a parameter whose value is obtained by evaluating a function.
CallbackParam(callback, dim = NULL, ...) ## S4 method for signature 'CallbackParam' value(object)
callback |
A callback function that generates the parameter value. |
dim |
The dimensions of the parameter. |
... |
Additional attribute arguments. See Leaf for details. |
object |
A CallbackParam object. |
callbackA callback function that generates the parameter value.
dimThe dimensions of the parameter.
x <- Variable(2)
fun <- function() { value(x) }
y <- CallbackParam(fun, dim(x), nonneg = TRUE)
get_data(y)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.